Discuss the following concepts: (a) homologous chromosomes x ½ = 2) (b) diploidy (c) haploidy

Q: 1. If the two sister chromatids are the same, how are they called? 2. Which specific parts exchanged…

A: Crossing over is an interaction that occurs among the homologous chromosomes which leads to high…

Q: Homologous chromosomes contain the same _________________, but may not contain the same…

A: Homologus chromosomes are the chromosomes with same genes. For example, we have a pair of…

Q: Examine the following diagrams of cells from an organism with diploid number 2n = 6, and identify…

A: Mitosis and meiosis are the well define termed for two kinds of cell division. Mitosis refers to…

Q: The sequence of processes shown in the photographs above is known as Select one: a. mitosis b.…

A: Cell is an elemental unit of the body in which various metabolic process takes place . It comprises…

Q: An individual with genotype AaBbCCDdEE can make many kinds of gametes. Which of the following…

A: Gametes are sex cell or reproductive cell that consists of a haploid set of chromosomes. Gametes are…

Q: (i)Draw a diagram of Metaphase I and II of meiosis in the father, which illustrates the only…

A: In this situation, we need to figure out the genes and processes that cause a particular child to…

Q: Genetics Question 12

A: The objective of the question is to identify the stage of cell division during which crossing over…

Q: Human cells normally have 46 chromosomes. For each of the following stages, state the number of…

A: The organisms grow with the increase in the number of cells, with each cell containing genetic…

Q: For a certain chromosomal region, the mean number of crossovers at meiosis is calculated to be two…

A: In the meiotic cell division process, a single germ cell divides twice to produce four non-identical…

Q: Consider a hypothetical diploid genome (n=2) with two pairs of chromosomes. For each of the…

A: A cell's growth and division are accompanied by a sequence of processes known as a cell cycle. A…

Q: Which of the following is not true in regard to crossover? a. Spindle microtubules guide the…

A: Crossing over is the process in which genetic material in one chromosome is exchanged with its…

Q: hat is a balanced gamete? A).A gamete that does not contain any chromosomes with inversions B.)A…

A: Introduction Gametes are produced by meiosis before fertilization. Gametes contain half of the total…

Q: Consider a diploid organism that follows the XX-XO mode of sex determination. Normally, there are 7…

A: It is process of generation of 4 sperms (spermatozoon) from the parent germ cell. It involves a…

Q: What adjectives can be used to describe a fruit fly that has a total of seven chromosomes because it…

A: Drosophila melanogaster is a fly species that belong to order Diptera. This is also known as fruit…

Q: Butterflies have an X-Y sex-determination system that is different from that of flies or humans.…

A: -The butterfly shown has a completely unique pattern of colors because o a special trait- it has two…

Q: Identify the stage of meiosis diploid cells of this species have 3 homologous pairs of chromosomes a…

A: Introduction  Cell division is the process by which a single cell divides into two or more daughter…

Q: 1.) If the chromosome number in a sepematogonium is 24, what will be the chromosome number in each…

A: Spermatogenesis is the process of formation of spermatogonia from the germ cells present in the…

Q: Two normal-looking fruit flies were crossed and, in their progeny, there were 202 females and 98…

A: •The proportion 202 and 98 of females to male fruit fly progeny is compatible with the ratio 2 : 1.…

Q: . The numbers of chromosomes in the somatic cells ofseveral oat varieties (Avena species) are: sand…

A: Polyploid organisms contain more than two complete sets of chromosomes, x is the basic chromosome…

Q: ले

A: Meiosis is a sort of cell division in sexually reproducing animals that results in the production of…

Q: A species of cereal rye (Secale cereale) has a chromosome number of 14, while a species of Canadian…

A: The resultant offspring from interbreeding between two taxonomically distinct species of animal or…

Q: How many sets of chromosome do each of the following types of cell have? a) Diploid cell b)…

A: Cell is the basic structural and functional unit of life. It is the building block of the body.

Q: Domesticated sheep cells have a total of 54 chromosomes (versus 46 chromosomes in human cells). (a)…

A: Chromosomes are the structures that carry DNA.

Q: For every one cell that goes through meiosis I and meiosis II a)four haploid sperm or four haploid…

A: Cell division is a process by which a cell divides into two or four daughter cells. The cell…

Q: Following primary non-disjunction, how many gametes will be nulliploid (zero copies) for the…

A: Nondisjunction occurs when the there is incomplete separation of chromosomes during meiosis. It can…

Q: 44) Pick the answer that best describes how metaphase I and metaphase II differ from eact other. A)…

A: Meiosis is the process that converts a diploid cell into four haploid cells.Haploid cells contain…

Q: Define the following terms related to sexual production: a.) Autosome b.) Sex chromosome c.) Gamete…

A: The type of reproduction in which two parents are involved is known as sexual reproduction.

Q: An abnormality in which there is one more or one fewer than the normal number of chromosomes is…

A: Meiosis is the process by which diploid cells divide into haploid gametes. To form four haploid…

Q: A cell undergoing division has a haploid chromosome number of 15. Give the numerical value for each…

A: Since you have asked multiple sub parts, we will solve first three sub parts for you. If you want…

Q: Consider a cell with 2 pairs of homologous chromosomes where Chromosome 1 with genes VWXYZ is the…

A: The impact of Chromosome 1 (YZ genes) and Chromosome 3 (ST genes) reciprocal translocation on the…

Q: This form of cell division is possible for a parent cell that is a somatic cell. (Choose one…

A: Answer: MITOSIS : It is the equational division, when a cell is divided in to two daughter cells…

Q: Draw the daugher cells (only the daughter cells, not the process) for each situation below & be sure…

A: A series of events that occurs in a cell to make it ready for the division is the cell cycle.  There…

Q: What can you conclude from the karyotype shown below? 2 3 7 8 10 12 13 O a) This individual has a…

A: Karyotype : The number , sizes and the shapes of the metaphase chromosomes constitute the karyotype…

Q: How do cells after meiosis compare with cells that are in the prophase of meiosis I? A) The cells…

A: Introduction: The production of offspring by sexual reproduction includes the fusion of two gametes,…

Q: Plasmogamy is the fusion of

A: a) When two haploid cells fused including their nuclei are called Nuclear fusion.. It results in the…

Q: Which sentence does not describe a way in which genetic variation increases during meiosis? A)…

A: The answer to the following questions are given below -

Q: Compare the following three terms: polyploidy, aneuploidy, and nondisjunction. Briefly discuss…

A: Ploidy is basically the number of sets of homologous chromosomes of a cell or an organism. The cell…

Q: In fruit flies red (A) eyes are dominant to apricot (a) eyes, and normal (P) wings and dominant to…

A: Given: In fruit flies red (A) eyes are dominant to apricot (a) eyes, and normal (P) wings and…

Q: You are an allele on a single uncondensed chromosome in a Yellowfever-carrying mosquito (Aedes…

A: The fundamental and active process by which a parent cell after replication of its components,…

Q: Which of the four daughter cells shown at right would produce an offspring with trisomy 3 after it…

A: The correct option is explained below.

Q: The duck-billed platypus has a unique mechanism of sex determination: females have five pairs of X…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: With two pairs of homologous chromosomes, four kinds of gametes can be produced. How many kinds of…

A: Gametes are formed by the process of meiosis in the gamete mother cells.

Q: I am a little confused on this question.

A: Since we are entitled to answer up to 3 sub-parts, we’ll answer the first 3 as you have not…

Q: A white-eyed  (X-linked  recessive character)  female  fruit  fly  is  mated  to  a  red-eyed  male.…

A: Drosophila is one of the most important creatures in biology, especially genetics and developmental…

Q: Examine the following diagrams of cells from an organism with diploid number 2n = 6, and identify…

A: Mitosis and meiosis are the well define termed for two kinds of cell division. Mitosis refers to…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.